<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>Document</title>
<script src="/CHENG-ZAO-ZAO/js/vue.js"></script>
<style>
    .block{
        display: inline-block;
        border: 1px solid;
    }
</style>
</head>
<body>
     <div id="app">
       <div class="block">不阻止默认行为</div>
       <div class="block" v-on:contextmenu.prevent="rightClick">阻止默认行为</div>
     </div>
<br>
   <script>
       let app = new Vue({
        el:"#app",
        data:{

        },
        methods:{
            rightClick:function(){
                alert("do something");
            }
        }
        
       })
    </script>
</body>
</html>